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Baseline Characteristics of the 3 BNP Assays in the Total Study Population
| Characteristic | NT-proBNP (pg/mL) | Biosite (pg/mL) | Shionogi (pg/mL) |
|---|---|---|---|
| Mean (SD) | 134.4 (230.4) | 46.2 (74.0) | 26.9 (43.2) |
| Median | 66.0 | 23.0 | 14.3 |
| Lowest third | < 36.7 | < 13.4 | < 7.9 |
| Middle third | 36.7–109.0 | 13.4–39.7 | 7.9–23.0 |
| Highest third | > 109.0 | > 39.7 | > 23.0 |
